Automatic extraction of isotropic points using min-max scanned photoelastic images

Terry Yuan-Fang Chen; Yu-Hsiang Fang; Han-Sheng Lin

doi:10.1117/12.621925

12 April 2005 Automatic extraction of isotropic points using min-max scanned photoelastic images

Terry Yuan-Fang Chen, Yu-Hsiang Fang, Han-Sheng Lin

Proceedings Volume 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics; (2005) https://doi.org/10.1117/12.621925
Event: Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, 2004, -, Singapore

Abstract

A robust and accurate method is proposed to extract the isotropic points from min-max scanned photoelastic images automatically. The method uses a multiple layered window with four-change condition to extract the isotropic points. Test of this method on both the simulated and experimental obtained isoclinic images and direction images is shown. An exact position was found for the simulated images and a difference of about 1.4 pixels is achieved for the experimental ones. The whole scheme is very simple, fast, and effective to extract the isotropic point for structural design purpose.

Citation Download Citation

Terry Yuan-Fang Chen, Yu-Hsiang Fang, and Han-Sheng Lin "Automatic extraction of isotropic points using min-max scanned photoelastic images", Proc. SPIE 5852, Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics, (12 April 2005); https://doi.org/10.1117/12.621925

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